acidic

adjective

acid·​ic ə-ˈsi-dik How to pronounce acidic (audio)
a-
Synonyms of acidicnext
1
: acid-forming
2
: acid

Examples of acidic in a Sentence

The soil in our garden is very acidic. the acidic water of a polluted lake
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But soil that is too acidic or too alkaline can adversely affect a plant's growth and productivity. David Beaulieu, The Spruce, 15 Feb. 2026 Caramelizing mellows out the tart, acidic quality of the fruit and adds a rich, umami-like flavor to these meatballs. Carolynn Carreño, Los Angeles Times, 15 Feb. 2026 For an acidic stain, pour 1/2 cup of white vinegar over the area instead. Olivia McIntosh, Martha Stewart, 15 Feb. 2026 Aluminum foil is heat resistant and can be used to line pans or cover dishes, but isn't nonstick, and may not be safe for acidic food applications. Katie Rosenhouse, Southern Living, 9 Feb. 2026 See All Example Sentences for acidic

Word History

First Known Use

1866, in the meaning defined at sense 1

Time Traveler
The first known use of acidic was in 1866

Browse Nearby Words

Cite this Entry

“Acidic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acidic. Accessed 18 Feb. 2026.

Kids Definition

acidic

adjective
acid·​ic ə-ˈsid-ik How to pronounce acidic (audio)
a-
1
: acid-forming
2
: acid

Medical Definition

acidic

adjective
acid·​ic ə-ˈsid-ik, a- How to pronounce acidic (audio)
1
: acid-forming
2
: acid

More from Merriam-Webster on acidic

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster